Words similar to insurmountable

Example sentences for: insurmountable

How can you use “insurmountable” in a sentence? Here are some example sentences to help you improve your vocabulary:

Lastly, proven vaccine approaches from the past have either failed (whole killed virus and subunit vaccines) or faced seemingly insurmountable regulatory hurdles (live attenuated virus vaccine).
Recently, data obtained from genome sequencing projects have made it clear that bacteria exchange genetic information by means of transducing bacteriophages, conjugative plasmids, and natural transformation [ 18 ] at a much higher rate than previously thought [ 19 ] . There seem to be few insurmountable barriers to interspecies gene transfer, with transfers being documented between such diverse organisms as archea and eubacteria [ 20 ] . Synechococcus sp. [ 21 ] and some P. stutzeri strains [ 22 ] are two examples of the many bacterial species known to undergo natural transformation.
Suppose it's 2000, the candidates are Gore and Bush, and Gore has a slight but not insurmountable lead in the polls.
But the almost insurmountable practical considerations reared up before me, and I quickly abandoned the idea.
At times, they even appear insurmountable.